US4109766A - Disc brake - Google Patents

Disc brake Download PDF

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Publication number
US4109766A
US4109766A US05/811,301 US81130177A US4109766A US 4109766 A US4109766 A US 4109766A US 81130177 A US81130177 A US 81130177A US 4109766 A US4109766 A US 4109766A
Authority
US
United States
Prior art keywords
guide pin
auxiliary guide
support
caliper
disc brake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/811,301
Other languages
English (en)
Inventor
Takehisa Inoue
Yutaka Ogawa
Hiroaki Sugita
Namio Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akebono Brake Industry Co Ltd
Original Assignee
Akebono Brake Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP8975976U external-priority patent/JPS537588U/ja
Priority claimed from JP1976089758U external-priority patent/JPS5759709Y2/ja
Priority claimed from JP12509376U external-priority patent/JPS5343185U/ja
Application filed by Akebono Brake Industry Co Ltd filed Critical Akebono Brake Industry Co Ltd
Application granted granted Critical
Publication of US4109766A publication Critical patent/US4109766A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • F16D55/2265—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
    • F16D55/22655—Constructional details of guide pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • F16D55/2265—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
    • F16D55/227—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins

Definitions

  • the conventional disc brakes include a type that uses caliper carrying guide pins and the structure of the disc brake is simplified by connecting these guide pins in a cantilever-like manner to a support, as disclosed in U.S. Pat. No. 3,081,843.
  • Such simplification is made possible with friction pads carried by the support and an operating load on the guide pins reduced by allowing the support to directly receive a braking torque during a braking operation.
  • an auxiliary guide pin is removably screwed to the support. When the friction pads are to be replaced, the auxiliary guide pin is removed from the support and the caliper is turned round on a main guide pin to facilitate the replacement work.
  • An object of the invention is to provide a disc brake which solves the above stated problem of the conventional disc brake.
  • a main guide pin is secured to a support at one end thereof and is slidably inserted in a boss portion of a caliper.
  • An auxiliary guide pin which has a hexagonal bolt-like head portion is secured to a boss portion of the caliper by screwing means or the like.
  • the support is provided, for example, with a hole through which the auxiliary guide pin is loosely inserted.
  • a collar which rises from an area around the hole to enclose the auxiliary guide pin is secured to the support.
  • an elastic bush is inserted into the collar in such a manner that the auxiliary guide pin pierces the collar through the elastic bush before it is loosely inserted in the hole of the support.
  • FIG. 1 is a plan view illustrating a disc brake as an embodiment of this invention.
  • FIG. 2 is a sectional view illustrating the disc brake of FIG. 1 across a line 2--2 indicated in FIG. 1.
  • FIG. 3 is a partial detailed view illustrating an exanple of improvement in the sealing effect on a pin sliding part of the embodiment shown in FIG. 1.
  • FIG. 4 is a sectional view illustrating the pin sliding part across a line 4--4 indicated in FIG. 3.
  • FIG. 5 illustrates further details of a part shown in FIG. 3.
  • FIG. 6 is a sectional view illustrating a second embodiment of this invention.
  • FIG. 7 is a sectional view illustrating a third embodiment.
  • FIG. 8 is an illustration of a fourth embodiment of this invention.
  • a caliper 11 has a piston 13 disposed on one side of a rotor 12 which rotates together with a wheel and also has a reaction member disposed on the other side of the rotor.
  • a support 15 is secured to an unillustrated fixed structural part of a vehicle. The support 15 supports a pair of friction pads 16 and 17 and is arranged to absorb a braking force developed at each of the friction pads 16 and 17.
  • a main guide pin 18 which guides the caliper 11 in the direction of rotation axis of the rotor 12 is secured to the support 15 and is inserted into a guide hole 19 provided in the caliper 11.
  • the support 15 has an opening 21 therein.
  • a collar 20 is disposed coaxially with the opening 21 and is secured thereto.
  • An elastic bush 22 is disposed inside the collar 20.
  • An auxiliary guide pin 24 which is provided with a head portion 23 is secured to a boss portion 25 of the caliper 11 and is inserted into the bush 22.
  • the tip of the auxiliary guide pin 24 is loosely fitted into the opening.
  • the caliper 11 moves according as the friction pads wear away. Further, in replacing the friction pads, the auxiliary guide pin 24 is unscrewed and removed from the boss portion 25 of the caliper 11; then the caliper 11 is turned round on the main guide pin 18 to expose the friction pads 16 and 17 to the outside to gain access to them.
  • the auxiliary guide pin 24 is provided with a head 23 for the purpose of making the bearing surface of the pin larger, so that the frictional force of the head portion 23 can be made equal to that of the boss portion 25 to prevent the screw of the pin from loosening.
  • the collar 20 is secured to a vertical plate portion of the support 15 with an elastic material inserted in between the auxiliary guide pin 24 and the collar 20. Therefore, the finishing tolerance in the pitches between the pins and between the boss holes can be absorbed by such arrangement.
  • the metal ring 26 is inserted in the collar 20 through a groove 27 which is provided at the end opening of the collar 20 as shown in FIG. 4.
  • an overall clearance C-D + E-F between the metal ring 26, auxiliary guide pin 24 and the collar 20 is arranged to be greater than a clearance B-F between the end of the collar 20 and the auxiliary guide pin 24, so that the force transmitted from the guide pin 24 is prevented from being imposed on the collar 20 through the metal ring 26.
  • the opening 21 provided in the support 15 may be dispensable in cases where it can be replaced with a protrudent shape of the collar 20.
  • the collar 20 may be formed together with the support in one united body.
  • FIG. 6 illustrates, as a second embodiment of this invention, a structure for supporting the auxiliary guide pin.
  • a cylindrical holder 28 for the auxiliary guide pin 24 is secured to the support 15. Inside the holder 28, there is inserted an elastic sleeve 29 which is open at one end thereof.
  • the auxiliary guide pin 24 which is secured into the caliper 11 is inserted in the sleeve 29 to be slidable over the inner circumference thereof. The sliding part is sealed and closed by the sleeve.
  • an area between the holder 28 and the guide pin 24 is covered with a boot 30.
  • the sliding part of the auxiliary guide pin 24 is perfectly protected by the holder 28, sleeve 29 and boot 30 to always ensure smooth sliding of the pin 24.
  • the resilience of the sleeve 29 not only elastically support the caliper 11 but also serves to absorb the tolerance in the distance between two guide pins 18 and 24.
  • FIG. 7 illustrates, as a third embodiment of this invention, a structure for supporting the auxiliary guide pin.
  • a cylindrical holder 32 which has a bottom 31 and is open at one end thereof is screwed to the support 15.
  • An elastic sleeve 33 is secured to the inner circumference of the holder 32 in such a way as to allow the auxiliary guide pin 24 to slide inside the sleeve 33.
  • the sliding part of the guide pin 24 is shut off from the outside by a boot 34 in the same manner as in the second embodiment.
  • an auxiliary guide pin 35 is screwed to a boss portion 25 of the caliper 11.
  • a column 36 is secured to the support 15 by welding.
  • a cylinder 37 with an elastic bush 38 secured to the inner circumference of the cylinder 37.
  • the column 36 is inserted into the bush 38.
  • the guide pin 35 is removably screwed to the boss portion of the caliper 11 with its head portion arranged to be in contact with the boss portion 25. This arrangement, therefore, makes it possible to have a greater diameter at the bearing surface portion which is friction connected to the boss portion, so that the possibility of loosening of the pin 35 is minimized.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
US05/811,301 1976-07-06 1977-06-29 Disc brake Expired - Lifetime US4109766A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP8975976U JPS537588U (fr) 1976-07-06 1976-07-06
JP1976089758U JPS5759709Y2 (fr) 1976-07-06 1976-07-06
JP51-89759[U]JP 1976-07-06
JP51-89758[U] 1976-07-06
JP12509376U JPS5343185U (fr) 1976-09-17 1976-09-17

Publications (1)

Publication Number Publication Date
US4109766A true US4109766A (en) 1978-08-29

Family

ID=27306217

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/811,301 Expired - Lifetime US4109766A (en) 1976-07-06 1977-06-29 Disc brake

Country Status (4)

Country Link
US (1) US4109766A (fr)
DE (1) DE2730338C2 (fr)
FR (1) FR2357787A1 (fr)
GB (1) GB1524007A (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360082A (en) * 1979-07-20 1982-11-23 Tokico Ltd. Disc brake
US4465163A (en) * 1981-03-09 1984-08-14 Sumitomo Electric Industries, Ltd. Floating disk brake
US4467898A (en) * 1979-12-05 1984-08-28 Societe Anonyme Dba Disc brake
US4480724A (en) * 1983-02-22 1984-11-06 General Motors Corporation Disc brake caliper mounting suspension
US4784242A (en) * 1986-10-31 1988-11-15 Bendix France Pad for a disc brake and disc brake equipped with such pads
US4784241A (en) * 1986-09-26 1988-11-15 Allied-Signal Inc. Integrated disc brake and drum rake construction
US4887696A (en) * 1988-11-30 1989-12-19 The B. F. Goodrich Company Disc brake
AU592007B2 (en) * 1986-09-26 1989-12-21 Allied Corporation A disc brake
US4995481A (en) * 1986-09-26 1991-02-26 Allied-Signal Inc. Integrated disc brake and drum brake construction
US5052526A (en) * 1986-05-16 1991-10-01 Alfred Teves Gmbh Spot-type disc brake
US5263555A (en) * 1991-10-25 1993-11-23 Bendiz Altecna S.P.A. Disk-brake
US5860496A (en) * 1996-12-18 1999-01-19 Itt Automotive Inc. Pin guided push-pull caliper
EP3992487A1 (fr) * 2020-10-30 2022-05-04 Meritor Heavy Vehicle Braking Systems (UK) Limited Ensemble de guidage pour frein à disque

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049780B2 (ja) * 1978-02-02 1985-11-05 曙ブレーキ工業株式会社 ピンスライド型デイスクブレ−キの摺動部エア抜き構造
DE2953656C2 (de) * 1978-02-02 1983-10-20 Akebono Brake Industry Co. Ltd., Tokyo Entlüftung an einer abgedichteten Bolzenführung bei einer Schwimmsattel-Teilbelag-Scheibenbremse
JPS54109575A (en) * 1978-02-16 1979-08-28 Nissan Motor Co Ltd Disc brake
JPS6020611B2 (ja) * 1978-04-15 1985-05-23 トキコ株式会社 デイスクブレ−キ
DE2816559C2 (de) * 1978-04-17 1986-06-19 Alfred Teves Gmbh, 6000 Frankfurt Führung für eine Teilbelag-Scheibenbremse, insbesondere für Kraftfahrzeuge
JPS54151775A (en) * 1978-05-22 1979-11-29 Nissan Motor Co Ltd Disk brake caliper supporting mechanism
JPS6049779B2 (ja) * 1978-06-26 1985-11-05 日産自動車株式会社 デイスクブレ−キのキヤリパ支持構造
US4311219A (en) * 1978-11-16 1982-01-19 Akebono Brake Industry Co., Ltd. Caliper guiding mechanism for disc brake
JPS6040904Y2 (ja) * 1978-12-20 1985-12-11 トキコ株式会社 デイスクブレ−キ
AU535782B2 (en) * 1979-01-25 1984-04-05 Lucas Industries Limited Twin-pin sliding caliper disc brake
GB2093934B (en) * 1981-03-03 1985-01-30 Lucas Industries Ltd Improvements relating to the construction of pin sliding calipers
GB2096255A (en) * 1981-04-08 1982-10-13 Automotive Prod Co Ltd Disc brake caliper
DE3219030A1 (de) * 1982-05-19 1983-11-24 Teves Gmbh Alfred Schwimmsattelscheibenbremse
DE3243851A1 (de) * 1982-11-26 1984-05-30 Alfred Teves Gmbh, 6000 Frankfurt Dichtungsanordnung fuer den fuehrungsbolzen einer schwimmsattel-teilbelagscheibenbremse
DE3443549A1 (de) * 1984-11-29 1986-06-05 Alfred Teves Gmbh, 6000 Frankfurt Teilbelag-scheibenbremse
DE3542388A1 (de) * 1985-11-30 1987-06-04 Teves Gmbh Alfred Teilbelag-scheibenbremse, insbesondere fuer kraftfahrzeuge

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081843A (en) * 1960-05-25 1963-03-19 Dayton Steel Foundry Co Improvement in caliper type disk brakes
US3712422A (en) * 1970-11-07 1973-01-23 Tokico Ltd Disk brake assembly
US4022303A (en) * 1975-03-04 1977-05-10 Aisin Seiki Kabushiki Kaisha Mounting structure for a disc brake actuator
US4051926A (en) * 1975-08-19 1977-10-04 Tokico Ltd. Disc brake

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1159102A (en) * 1965-07-10 1969-07-23 Girling Ltd Improvements in and relating to Disc Brakes
JPS5131337B1 (fr) * 1969-03-26 1976-09-06
GB1382046A (en) * 1971-03-09 1975-01-29 Girling Ltd Caliper disc brakes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081843A (en) * 1960-05-25 1963-03-19 Dayton Steel Foundry Co Improvement in caliper type disk brakes
US3712422A (en) * 1970-11-07 1973-01-23 Tokico Ltd Disk brake assembly
US4022303A (en) * 1975-03-04 1977-05-10 Aisin Seiki Kabushiki Kaisha Mounting structure for a disc brake actuator
US4051926A (en) * 1975-08-19 1977-10-04 Tokico Ltd. Disc brake

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360082A (en) * 1979-07-20 1982-11-23 Tokico Ltd. Disc brake
US4467898A (en) * 1979-12-05 1984-08-28 Societe Anonyme Dba Disc brake
US4465163A (en) * 1981-03-09 1984-08-14 Sumitomo Electric Industries, Ltd. Floating disk brake
US4480724A (en) * 1983-02-22 1984-11-06 General Motors Corporation Disc brake caliper mounting suspension
US5052526A (en) * 1986-05-16 1991-10-01 Alfred Teves Gmbh Spot-type disc brake
US4784241A (en) * 1986-09-26 1988-11-15 Allied-Signal Inc. Integrated disc brake and drum rake construction
AU592007B2 (en) * 1986-09-26 1989-12-21 Allied Corporation A disc brake
US4995481A (en) * 1986-09-26 1991-02-26 Allied-Signal Inc. Integrated disc brake and drum brake construction
US4784242A (en) * 1986-10-31 1988-11-15 Bendix France Pad for a disc brake and disc brake equipped with such pads
US4887696A (en) * 1988-11-30 1989-12-19 The B. F. Goodrich Company Disc brake
US5263555A (en) * 1991-10-25 1993-11-23 Bendiz Altecna S.P.A. Disk-brake
US5860496A (en) * 1996-12-18 1999-01-19 Itt Automotive Inc. Pin guided push-pull caliper
EP3992487A1 (fr) * 2020-10-30 2022-05-04 Meritor Heavy Vehicle Braking Systems (UK) Limited Ensemble de guidage pour frein à disque
US11603896B2 (en) 2020-10-30 2023-03-14 Meritor Heavy Vehicle Braking Systems (Uk) Limited Guide assembly for a disc brake

Also Published As

Publication number Publication date
FR2357787B1 (fr) 1979-07-13
GB1524007A (en) 1978-09-06
DE2730338A1 (de) 1978-01-12
DE2730338C2 (de) 1983-10-27
FR2357787A1 (fr) 1978-02-03

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